智慧人生篇章 第12期:同性恋婚姻之争(2)

And of course that's just where the problems lie. Though people on both sides appeal to what is natural, nature unhelpfully supports both sides liking both consistency and variety in gender and sexuality. So most people are male or female, but there

万花筒 2009-02-24&02-25 我是八胞胎的爸爸

The former boyfriend of the California woman who gave birth to 8 babies last month. He is speaking out. His name is Denis Beaudoin. And he thinks that he could be the biological father, not only of the octuplets but possibly Nadya Suleman's 6 other c

VOA常速英语2015--试管狗崽挽救濒危品种

试管狗崽挽救濒危品种 These playful puppies are part of litter of seven, born July 10, out of 19 embryos implanted in the same female dog. Five are beagles and two are beagle-cocker spaniel mixes. 7月10日，一窝狗崽出生，研究人员将

英语俚语天天说 第171期:诺奖得主告诉你女人如何被爱！

介绍: From William Golding I think women are foolish to pretend they are equal to men,they are far superior and always have been.Whatever you give a woman,she will make greater.If you give her sperm,she'll give you a baby.If you give her a house,sh

美国科学60秒 SSS 2013-07-30

This is scientific american 60-secs science. I'm Sophy Bushwick. Got a minute? It takes a white chromosome to make a man, but that does't mean its counterpart, the x-chromosome, plays no part. In fact it has a big role in making sperm. To study x evo

纯正地道美语(外教讲解)246：生命的奇迹

A: Continuing with our class, today we are going to study briefly the miracle of life. Many of you may think you already know how babies come to be, but I am sure that some of the things that we will be talking about today may surprise you. Billy ，

英文笑话：biology class 生物课

biology class This happened in a university biology class. The professor was explaining that sperm has a high concentration of dextrose. One freshman girl who looked puzzled asked, Then why doesn't it taste sweet? Notes: 1. This happened in a univers

科学家们通过不同的方式拯救犀牛

科学家们通过不同的方式拯救犀牛 The biggest threat to rhinos are poachers who kill them for their horns. 对犀牛而言最大的威胁是偷猎者为了它们的角而将其置于死地。 In spite of a lack of scientific proof, many i

【跟着英剧练发音】South Pacific S01E03 - C

文本： Aftertheir epic journey from the tropics, the young bull sperm whales have finallymade it. Sperm whales dive deeper than any other whale. They're drawn here bythe fabulous wealth of deep-sea creatures, even the giant squid that lurk inthe d

英语听书《海底两万里》第68期 第6章 开足马力(10)

While I was observing this phenomenal creature, two jets of steam and water sprang from its blowholes and rose to an altitude of forty meters, 当我观察这只奇怪动物的时候，两道水和汽从它的鼻孔吐出来，直喷到叫十米的高度

英语听力文摘 English Digest 366、神奇的“鼻子”

Sperm Sniff Out Their Targets 精子靠嗅觉发现卵子 Scientists who study human sperm have long wondered whether human sperm could somehow sense the presence of an egg . Then, just about a decade ago, it was discovered that sperm have protein s

美国研究生入学考试难句解读-11

Thesequestionsarepoliticalinthe sensethatthedebateoverthemwill inevitablybelessanexplorationof abstractmattersinaspiritof (50)disinterestedinquirythananacademic powerstruggleinwhichthecareersand profes

英语悠选脱口秀 第39期:冻卵生娃 晚育福音

讲解: Today's key word is Egg. Egg 卵子 Here, an egg is a cell that is produced in the bodies of female animals and humans. If it is fertilized by a sperm, a baby develops from it. 当一个卵子遇到一个精子，就诞生了一个小宝贝。

学个词 Learn a Word-VOA英语教学 2536 felon

今天我们要学的词是 felon. Felon 名词，意思是重犯。Virginia Governor Terry McAuliffe signed an executive order to restore voting rights for roughly 200,000 convicted felons. 美国弗吉尼亚州州长麦考利夫签署行政命令，恢

【英语时差8,16】如何界定性别？2

Another sexual difference among mammals that doesnt hold with other animals is size. In most mammals the male is larger than the female, but in most other animals where there are two distinct sexes, the female is the larger one. Today scientists defi

【英语时差8,16】动物界的染色体有何不同？

In mammals, the sex of a baby is determined by the combination of chromosomes it inherits from its parents. Nearly every cell in a male body has two different sex chromosomesone is shaped like an X and one is shaped like a Y. Females also have two se